We have a few of the rare 5692 tubes in stock. The construction is standard for 5692 tubes: black plates, triple mica, and rugged. They are low noise and microphonics. Excellent upgrade for Rogue 99 Magnum preamps, Cary SLP 98P / SLP 98L and SLP 05 preamps, and Atma-Sphere preamps.
Note: Photo shown is an example and may not be the exact tube available.